For this to work you will need at least 2 people playing.

You have to open the door upstairs and go into the room. Open the door in that room and go down the stairs. In that room there will be a mp40 and a stakeout. Buy one of them and open the door in the room.

Finaly, go to the door that opens the theater but don't open it. One player stands at one side of the door and the other player stands at the other side of the door.

The dogs will come and stop in front of you but after a while they will attack you. When they stop, kill them.

You can't do this if the theater is open.